World’s greatest bacterium present in Caribbean mangrove swamp

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World’s greatest bacterium present in Caribbean mangrove swamp
World’s greatest bacterium present in Caribbean mangrove swamp

Scientists have found the world’s largest micro organism within the swamp of the mangrove forests of the Caribbean.

Most micro organism are microscopic, however these micro organism are too massive to be seen with the bare eye.

The skinny white filaments, in regards to the measurement of a human eye’s eyelash, are “the largest bacteria known to date,” mentioned Jean-Marie Foland, a marine biologist at Lawrence Berkeley Nationwide Laboratory and co-author of a paper asserting the invention. Thursday in Science journal.

Olivier Gros, a co-author and biologist on the College of the West Indies and French Guiana, discovered the primary instance of this bacterium — referred to as Thiomargarita magnifica, or “brilliant sulfur pearl” — clinging to sunken mangrove leaves within the Guadeloupe archipelago in 2009.

However he did not instantly realize it was a bacterium due to its surprisingly massive measurement – these micro organism are, on common, as much as a 3rd of an inch (0.9 cm) lengthy. Solely later genetic evaluation revealed that the organism was a single bacterial cell.


“It’s an amazing discovery,” mentioned Petra Levine, a microbiologist at Washington College in St. Louis, who was not concerned within the examine. “It opens up the question of how many of these giant bacteria are out there – and reminds us that bacteria should never be underestimated.”

Gross additionally discovered micro organism related to oyster shells, rocks, and glass bottles within the swamp.

Scientists haven’t but been capable of develop it in a lab tradition, however the researchers say the cell has a construction uncommon for micro organism. One main distinction: It has a big central compartment, or vacuole, that permits some cell features to happen in that managed surroundings fairly than all through the cell.

“Having such a large central gap definitely helps the cell to bypass physical limitations … regarding cell size,” mentioned Manuel Campos, a biologist on the French Nationwide Heart for Scientific Analysis, who was not concerned within the examine. .

The researchers mentioned they weren’t certain why the micro organism have been so enormous, however co-author Voland hypothesized that it is perhaps an adaptation to assist it keep away from being eaten by smaller organisms.

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The Related Press’s Division of Well being and Science receives assist from the Howard Hughes Medical Institute’s Division of Science Training. AP is solely chargeable for all content material.

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